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Yep, the fun begins! Engine is phenomenal even using the base map. Made a few minor changes to the base since we talked on Saturday and the low rpm drivability improved 10x. Cervelli really knows how to build a motor. I met up with another 996TT owner and 2 997TT guys while I was running my break in route and they all commented on how clean and smooth my engine sounds, none of the typical mezger rattle.
Did a lot of runs at less than wide open throttle up to 5500-6k rpm and let it engine brake back down to 2000-2500 and repeat. Saw a peak boost of 0.4 bar or something like that. It just wants to rev and it really comes alive as the rpm climbs. It revs so fast. Can't wait to experience it fully dialed in.
I'm tentatively at 8400 and likely back it down to 8200 as tuning progresses (depends on what the motor wants) and his current motor is 7600-7700 I think, but has seen higher on the dyno.
That is very impressive, bet it sounds the part too.
If I choose to go back to AWD, I am most certainly going to do what Darrick did and use a 991 front diff and controller, which will allow for some slippage without burning out the diff; I can most certainly see this issue with the goo diff on the 996, but an electronically controlled clutch diff should be more forgiving.
He is using an aftermarket controller, don't think the 991 controller works with these cars. I believe he said the stock map it comes with is pretty good and you can tune it as well.
Am tempted to do it on my car but will see how it works when I go w/ a K16/24 Hybrid and tune. I will also be relocating to a warmer climate in the next year or so as well so not sure if its money well spent
He is using an aftermarket controller, don't think the 991 controller works with these cars. I believe he said the stock map it comes with is pretty good and you can tune it as well.
Am tempted to do it on my car but will see how it works when I go w/ a K16/24 Hybrid and tune. I will also be relocating to a warmer climate in the next year or so as well so not sure if its money well spent
I'm familiar with the system, MapDCCD.
In a thread over on the 991 forum I've asked the fellas if anyone knows how the 991 system works - TPS, versus slip, etc., etc.... no numbers yet.
Which rotors are required for the 6 piston GT3 front calipers to work? I'm trying to find a part number. 997 Turbo rotors required due to lack of AWD on GT3? I thought I read Cayenne rotors work as well?
I'm not sure what the heck these odd slotted rotors are but they should be 350mm. They do not have a precision for the hub screw and can spin past the wheel bolt holes without the hanger tools installed.
997GT3 rotors bolt on perfectly with the GT3 calipers. No idea about cayenne rotors.
Found a post on 6Speed from John stating the hat offset is different on the Cayenne. 997TT rotors are recommended. I swear, I searched previously. Dangit.
These look like Cayenne rotors. The empty hole is for the rotor retaining screw.
Originally Posted by QwikKotaTX
I'm not sure what the heck these odd slotted rotors are but they should be 350mm. They do not have a precision for the hub screw and can spin past the wheel bolt holes without the hanger tools installed.
Theprf knows his stuff well. That is a Cayenne rotor and the retain screw is huge.
Ah, ok. Thank you all for the information. Not sure if these rotors were modified to fit on the backside but they definitely look heavy as mentioned by John on 6Speed.
I have a 955 Cayenne.... I recently replaced the 380mm front rotors and they weigh 40+ pounds each. They are also a unique offset to the 2006 or 2010 cayenne turbo S so they are expensive. Those look like the 350mm cayenne fronts.
03-19-2024, 06:18 PM
